Pumping or circulating system



. May 28,1929- L.. A. PARRlsH ET AL PUMPING OR CIRCULATING SYSTEM 2 Sheets-Sheet 55g mund HEr'msnn Filed Feb. 27, 1928 L1 ngdParriET-x Flag* and Arnold EB-raakten 44,/ y j t Clt/1501114144 May 28, 1929- L. A. PARRlsH ET Al. 1,714,921

PUMPING OR CIRCULATING SYSTEM Patented-May 28, vi929.

s s vThepresent invention relates to pumping 'or circulating systems and while particularr yly Well ladapted for use in pumping or circu- 5 bustion engines, in certain features is ad- ',vafntageousl evenwhere gas-or Vair isrto be i, pumped-lor compressed. D ff The principal objects of the invention are, to provide pumping or circulatingA systems '510' whicha're positive inthe Jfeed or circulation of thelubricant or material, depending; in no 1, way',uponinon-positive or force-closed mecha- "nisms,l such as springs, check valves, etc., in

' the normal operationof the pumpsjo'r sys- Y tem'sJwhich will remain operative and etlicient oria great length of time, without atf tent-ion, andy hence particularly well adapted .l Ato' installation'inplaces not readily-,accessi- '20 ble, as'within'thehousings or crank cases of y pumps or circulating systems requiring sumps lofno great capacity, thus enabling the equipv'ment to be used where the supplyof material 'Q25r `pui'n'p'edj.oricireulated.is nq greater than that usually supplied, from time totime, as to the 1 crank cases or'oilsumps of internal combustion engines-j lExperience jeatingjsysteins, eitherjas the result of broken pipesor. connections; failure of units,sucl i as' check valves to properly function; freez- .I .s h'epumpsl which permit escape of the f lubricantjorftail `to charge the pumps. It l jIiS'antherobject-,ofthe invention to provide lubricating'systems in .which the lubricants are conducted` thru elements oft the pumps, avoiding theuserof pipes, tubes, etc. e, As Van f example, individual elements of the pumps may unetion for a number of purposes, such eccentric operated piston rod func- F45,l lgto,reciprocate the piston, acts asa 1. positi'yevalvev therewith, and conducts the jliibrieant ointhe cylindertb another ele- `inent,`;to insure 'firmv seating of the valveaet- .Ting` ortioirr'if the piston rod and the eccen- 0 ri'cjstra'p on its eccentric, even tlio parts may l 'ntiine'toy somefextenu and l thus lubricant; atrelatively mo vable Other objects ande advantages of the inven-V -Yinthe following detailed...del

" n' latinglubricating me'diuinsof internal coin-y -ftems; to. provide pumping or circulating sysy'internalcombustion engines; and, to provide has shown that much damage .to machines results from failure ot the lubrb s jL ing'orviseosity of the lubricant'or contami- 4 nator,'vsuch aswwater when cold; or wornparts messi ..1 msc STM ES f PME @mw .LLOYD A.. mamen; navi/.toNDy H. Emosoiv,v ANnARNoLnMCcRAcKEN, orfoNTARo, Wisconsin. d

PUMPING 0R CIRGULATING SYSTEM.

Application filed February 27, 1928. Serial No. 257,87,3.

the crank 'shaft and case, showingthemajor portion of the lubricating systemfv l Figure 3 is an enlarged detail view 'in cen- 1 tral verticalseetion. thru one1of the units of the lubricating system, and. showing the lpiston in a position'` during intake stroke.;V

- Figure l' is a similar viewfshowingthe piston and cooperating parts in a start of the exhaust stroke.

Figure 5 is a similar view, showing the piston andY cooperating parts'in a position duringsubstantially one-half of such-` exhaust stroke'. j 1 Figure 6 is asimilar view showing the piston as having completed the exhaust stroke and in a position to move forintake. Figure 7 is a View on substantially the line 7-7 'of Figure 3,` but showing Vtwojofl the units of the pump.' l

showing the position for piston rods removedzto more clearly illustrate the piston heads. i

"In the drawings, A designates anlinternal combustion engine,-inclu`ding a main body portion providingcylinders' Gin' which `reciprocatepistonsjD having rodsE connected t'oa, crankshaft F, the latterv revoluble.y in bearingG carried by bearing support H, all of whichlis similar to-any of many'makes and models 4of engines. 'In theexaniple Athere is shown timing gearsJ' and Kythezfvo'rmer on shaft F, and the shaftF as well as the connecting rod E providedwith ports Land M', respectively, which communicate for the pur- Vpose of lubricating various bearings of moving parts of the engine, as in affull 'force vfeed .lubricating system, It is tofbe understood, howeverithat Athe( foregoing'is merely by way lof examplegsince the present invenf tion is applicable to engines of different types, such as aeroplane and marine engines, which diileiin manyinstanceslfronithe type'shfown vin v.the Adrawings,fandin afb-reader sense, the l .3 applicable vto rpullpixg thl inni 21.10

Present invention er; circulating Sys ,all

bricant.

pumped or circulated is net neeessarily a lu- In addition tothe shaft F, and in the'pre- -ferred formof theinvention, the bearing support H, the system comprises eceentrics 10 and 11, cylinders 12 and 13, trunk pistons 1 4 and 15, and piston rods 16 and 17, including eccentric straps 18 and19, respectively, there Vbeing also relief valves 20 associated with the cylinders 12 and 13 anda yoke 22, in the eX- ample shown rigidly connecting ory supporting the cylinders 12'and 13 from the bearing support H@ Ther vsystem "inf the example shown also compi'isesan oil sump 23 preferrablyjhaving :a ren'iovable bottom p latef24, and' .Y

an inelinedrunivay'2 leading to sannp/v23.:

The eceentrics 10y and 11 may bevformed Vintegral with shaft F, ormay be rigidly secured Vthmevvitlnfin anyy suitable. 'manner'. Each eccentric `1s providedavlth an arcuate peripherallvport 26 vextending thruout an' are f of substantially 1800, 'andrcommunicating Y with a Vradial port 27 in shaft F, which radial port communicat es with lport L ias. shown in i Figures v346. AFor compactness, fsymmetry,

and balance, Vthe eceentrics .10 land 11 are lpreferably.disposed at opposite sides ofbcaringsiipport H, as shown in Figure 1, Vwhich arrangement permitsfof ready removal of the timing gear .l in theevent that Vrepai'ror re-y placementfmay be necessary. The eceentrics f 10 andll are preferably arranged so that their throwfsidesl are at opposite sides'or` the? .longitudinal axis of shaft F. l

The cylinders 12 v13 are preferablyr Y cast en bloevvith a web of metalV 2 9 between them, as shownin Figures 1, l7 andA .8, the.

vcylinders Vbeing spaced so*V as to dispose Vthem r f with their longitudinal axes inthe planesof the eceentrics 10 and 11. Yoke 22 has arms 30 integralwith the v'vebi29, and flanges 31 at Y the upper ends of arms 30, secured tofbearing j Y support H, as by machine screws 32, as shown n inFigure v2.- 'This arrangement `provides aV rigid support ofthe cylinders fromthe bear# V`ing support and yet :permits readyaecessfto I theerank shaft bearing ,v n

Each cylinder. isA providedgyvithflone. or more transverseA Ways 3 3 thru whicliliquid, suc-h as thelubri eant-, mayflow laterally into -`the'cylinder, and Tnot necessarily indits way thereintothru the open top 34 of the cylinder. The jhead' at ,the lower portiono the cylinderis provided with a yremovable plug 36 Vfor the removalof foreign matter. ,Each 'cylnnlerllfas alongitudinally extending Way ,37 communiea'ting'with the'botton'rof the '-eylinder as at 38,' and provid'edmat its upper lend witlrrelief rvalve20 for a purpose'to be ",sul'i'sequently set=fo'rth. e

n.maybeessermifrom.rimes 1mi 2 than the Ways 33. in the cylinders, so as to communicateWitlrthe latter thruout the 'amf Vplitude of movement ofthe pist0 ns, and so YWith one or more transverse ways39 in` its skirt 40 these Ways being relatively longer that the Askirts .of the pistons will,Y form no obstructions to passage oi' the liquid into the Y cylinders without passing over the upper portion of the latter. The heads 41 of the pistons 111 and 15 are'provided vwith turnsk verse thru ports 42 and irespectively, andY the aees'of the heads 211 enclosed theskirts adjacent the uppermargin of, the piston, thatis, the point 441thru-Whieh they.axisofoscilla,

tionof the yrespective connectingrod of the ing poit-Ofopen at ends body portion' '53 of `the 52 acting asa valvefor'thej ort. o -it's Espective piston-, y andthe ;en df51 of port 50 eemmunieating at the proper'- timefffwith the peripheral'port'26 ofJits respectiveeccentric. TlieQloWer portion-of-VportfO, Vor 'ini'othfen Words,`t'hat"portion adjacent the head vofthe pistonA is flared'or enlarged soV thatfull `'capasvr'of the pistons are 'concaved asshoyvn in Fig- Y eef,

10eV ityrefthe vpiston' he'adfport may be utilized n during the exhaust strokeof the piston. In the examplefshovvn, the eccentric straps 18 and 19 of the piston 'rods 16 andl are connected -1 to yoke or strapportions'tat the upper-lends of `the mainbody portions ,53, as byibolts 55.V

Thej 'piston rodsfare 'pivotally `r"con nejetedj to 'their respectiye pistons as bytrunnions56,`

thelaxessol:y Whicharein theflineAl, ffroIn V Awhich thearcfof the inner facethe piston;A Ifhead'is struck, so that't'he valve aetingloiwer j. portion; offthepiston rod,correspondin0ly shaped, Will-haviefgoodsuriacefto sur ace V VContactwithV the pistonheadjf Inpra'etice, the ports 42 andf43 offftliepistons 14 and 15 mayf be relatively longV and narrow and still have considerableeapacity for passage ofthe liquid from the gcylinders."

Su'chan arran,f ,rement` alsol permits the' valve acting piston rod toquickly open the ports for intake and exhaust'of theliquid orages, relaf."

tive to 'the Cylinder. Utilizigntfics for operatingfthe piston'rods results in .rapid movement ofthevalveacting end `ofthe respectiv'e connectingV rod lfvvhen. the piston fis just approachingtheend ofeither stroke,-`nd j alsoy v'enables the(-zquipjment to be APapp liedj-to crank-sha1 i Without the .p revdng i cranks; 1

`Vithout A wveakexiilng-q same, and cessityof cast-ing 'or other A-An important, feature l 11 the, inventionisthat Wear of parts results in or liquid irnilyseating. For instance, if the .trunnions '56, of' the piston rod yshould Wear, .compressionofthe charge in the cylinder durl I-firmlyseatjthe valve acting end ofthe piston .rodon-the insidesurface ofthe piston head, as

V310 piston has descended substantially one-half #the stroke for exhaustlof the lubricant thru i surfacegoftheeccentric 10, so as` to prevent Hr:the piston, as shown in vFigure 3, and While j hencelforcing; lubricant into the longitudinal 28h12'`v theefccentriclO is 'ascending' and -there,

:the eccentric and the'veccentric'strap 18.`

,gca'nt'orliquidwhen cold and the viscosity isl fiffunctionS lkeanyl relief valve, and; mayb@ of anyl Suitabietype; i

' *'quirernentsf. ofzthevpositivefeed lubricating- ,System for?ginternalcombustion engines, 1t 1s sesfand Y realizing that 'the conditions (con.-

inecesfsarily'vary, it ils-'desired toemphasize of v'-vvithout*sacrificing any of the advantages of thefinvention,as defined in thevappended lI`We-f'ilaini-z*Y Y w l 1L' A fpuinpfcornprising ra shaft, av cylinder ndandiopen atgits upper. end, a trunk piston' its-head, a piston-,rod operatively connected toflsaidf's'haft and pivotally connected to saidl frod toth'efpistoii' being internied iatel the gen ds of the rod 's oftlialt.- a'p'ortion ofthe rod extends, j? 4tothexfinner'face loi'; the piston, said cylinder :piston`head,'and`theslrirt of the piston, pro.

dei-and piston toV theport in thelatterfyand;

dvthe 1 lowerend` of thev piston Vrod convex a renately .-fronitheline of pivota-liconnection" of 'Y `valveeltor theiport in the piston head. Y

'thoseparts usegd'or conducting the lubricant u or'straptispressed tightly against the lower Vescape vofthelubricant laterally of the ec. f' mntric strap. v Duringthe intake stroke or" i. ',theiother. piston is on itsfexhau'st stroke, and

:way'L of the crank shaft F the, throw side.

- fore has aftendency to seal'the space betweenv f-Theportsj? and'38',and the rel'iefvalve 20. i'sfprovi'dedvfor the escape of some of thelubri- A f'such astoretardits flow. The relief valve 20T -COHDGCiOnQf the IOd fifi. Wh'ljerlthis inventionprovides'for allre-` ofcourse 'susceptible of application to other' ciirrentlwith fthe' vadoption 'of thev `system will the'fact that various minor changes in details,l

of'construction, proportion and arrangement partsinay be resorted to, when required,--

ftheillebel'otv, vlprfo'vided with ahead at its `lower` in"said'cylinder--provided tvitha thru port in ston',-to reciprocate the latter upon rotation'.` oftheforinerfthe'pivotal connection of thev yvalll above the ZoneofV reciprocationv of the` syidedyvithrtransverse aligning openings thru v Whi'ch'liquidmay flow laterally into'the cylin'v theinner sur'facerof the piston'V head concave heirodvvith'thepiston, whereby said-rod with `a longitudinal port, an eccentric 0n Said shaft, provided with an Aarcuate` Vperipheral port otv .Substantially 18,09 communicating with the-.port of said shaft, acylinder below vsaid ecccntricprovided'with ahead at its lower end and open at its upper end, a trunk piston in said cylinderprovided with a. thru port in its head, a piston; rod/.including an Veccentric strap about said eccentric, said rod pivotally connected tosald piston to reciprocate the latter upon rotationofirtheshaft, the

pivotal connection ofthe rodl to the piston l being intermediatethe'ends of the -rod `so that a portion ofthe rodexgtends to the inner face of thepistorn andthe vrod being hollow to provldea port from en-d to end, Ato conimunicate with theport of the,eccentric duringV f ,substantially one-half rotation of `the latter,

1 said cylinder wallfaboveth'e zone of Lreciprocation of the piston headand theV skirtoi" the .i piston provided gwitli ytransverse aligning openings thru Whichzliqu'idinay flow Ilaterally into the 'cylinder `and piston 'to' the lportlin the latter, and the inner surface oflthe piston head concave and the lover end of the piston rod convex -arcuately'fromthe line offpivotal y withthefpiston, whereby said rod acts asa valvefor the ton head and an outlet for [liquid from the cylinder thru the piston head' portto .the port- .ofsaid shaft,

,3. A pumpl .comprising-l' ashait provided with a longitudinally' extending port, anecp'ortinthe pisi centric onsaid shaft-providedavith ana-rcuate peripliera'l'port communicating Withnthep porto said shaft, a cylinder below said Veccentric provided with a head-'at its lower end andfopen at its upper end,atrunlipiston in said cylinder provided with agthru port- 4in its` head, andapiston rod includingan eccentric'lO strap about saideccentric, :saidl rod pivot-ally connected tolfsaid piston-tojreeiprocatethe latter 'upon' rotationl 'off rthesliaft,v the lpivotal :connectionojf therod' tofthepistonheingiin#y Y terlnediate the -ends of, the rod,lsofthatalllo f portion of then'od;entends!tor-"tithe: inner f end; to 'communicate with the portf of the eccentridsaid cylinder Wall :abovethezone'l15` l of reciprocation ofthe-piston head,fa nd the skirt ofthe; pist-onA provided With transverse aligning .openings `thru which liquid inay loW laterally into the cylinderand vpiston vto the portjoLt' the latteigrand the inner surfacelzo of.l the piston head concave; and theloWer end ofthe piston rodconvex arc'uately from the line of pivotal connectionfvvith. the frod'of theipiston,V whereby; the V'said rodf acts .as a valve for thefport .inthe thepiston head port, to 'theportfof sa'idshafh i .4.' A ipunip con'iprisingp affsliaftprov-ided pi ston.l1ead,and21951125 ygoutlet for liquid .tronil the ,cylinder thru Y port-of V,substantiallyl 18()or -V comin'unicatingYV-l Withr the port of'said shat,a cylinder pro-A tion of the rod extends tothe inner. face of" the piston head, and the rod being holloWtor. provide aiporttroni end to end, to "communi: cate with the port of the eccentricv d'uiinfgg'sub-k `stantially one-,halt rotation of the latter, 'andV the inner surface of the piston head-*.concave,`

vided with a head at one end,-"and open at .its end toward said shaft,'atrunkpistonin said Vcylinder, provided With a thru port 'inritsj head, and a piston rod including an eccentricV stiap about said eccentric, said-rod p'ivotally connected to saidip'istonto reciprocate the lat- *nicating' with the port of said shaft, a'npaii .of cylinders,oneA for each ..cc`ce1itricj, meanswforA rigidly"V supporting the` lcylinders from'.` `said bearing'supportwith .theY longitudinal ter upon rotation of the shaft, the pivotal connectionvof therod to the piston beinginterinediate the ends of the vrod sothat a por@ I j and theflower end ot'the piston rodlconvel; arcuately from the line'of pivotal connection of the rod with the piston, Whereby'tlic saldi' rodacts vras fav valve for thev port inthe'pistro'nfhead, and affords-'an o'i'itletV from the cylinder i thruthe port ofsaidfpiston head,`to.tl`ieport -7- terme'di'ate portion pivoted'- to its' respective Y Y' A-oi` Said shaft. .1

V`vided vvitlia longitudinal port, a'bearing and fbearingsupportifor saidshaft,two'eccen trics .Y Y

'l bearing support fori saids aft', two-eccentricsi ion 'said shaft having theirithrow sidesofset vWitlirespect to each-otheigfand provided with.. arcuate peripheral? ports"V i communicatingry A With )the port of `said-shaft, ai 'oflcylin L 51 on said'shatnsaid eccentricsv at opposite sides of said',bearing'n support andhaving throw sides at opposite sides ofI the axis'of the shaft-A and provided with arcuateperipheral ports communicating With the port of said shaft,*a

. pair off? cylinders, .one for VVeachlfeccentric,'A means Vfor lrigidly supporting 1the cylinders from said bearing support with the 1ongitu;.g

'dinal aXesof thefcylindersiinthe planes of.v

their respective eccentrics, Ya trunk pistonin each' cylinder, each pistonprovided vvvith Ya transverse thru portfin itsY head, and a-.p'iston rod foreach piston, V`each 'rodhaving its -inpiston, and .including Vanecc'entric strap 'for fits respective eccentric, "each-.rod1also-pro.5

in" .thea` eccentric during-substantially a; half .turnthereof and having its lovver Vend Vacting as a valve for the poi-tof .its respective piston.

6V In' a 'lubricating ,systein, -a .shaft vpro-f; .1 vided withA a longitudinal port, a hearingy and. bearing .suPPOItfor said shat, 'aneccentric Y -rlonsaid` sha'ttprovided yWithLan 'arcuate perripheral port communicating vvith the? por-t otsaid shaft, a cylinder,means` toiwrigidly;

vsupporting the cylinderV from said bearings support'with the longitudinal. axis of thecyl-` inder inthe planeoisaid-eccentric, "a trunk piston in said cylinder,rsaid piston provided Withva tr'aiisversethru portjin'its -head,and Va piston-rod h'aving'its intermediateportion pivotedto said piston and `including,fan ec; centric-'strap about'said eccentric, the rodfa'lso provided l.with aVv longitudinalport open atjif' itsends'to communicate Vvviththe .port in the Vffeccerfltric Vduring substantially ahalf turn` 7 .fIn alubricatingsystem,- a shaftfpio-l vided with'. a "longitudinal port, ja `bearing and bearing'su portforsaidfsliaft, 1;.Wo'ec -V centricsfongsaicjsliaft, saidreccentrics at op-1.V` y

posite sides ofl saidrbearing supportl and provided `with f arcuate peripheral 'ports commu-v Y" axes of thecylindersv in the planes; of their.

v,respectiveeccentrics, ajtrunli piston 'in each 5 cylinder, eachA piston provided with a .trans verse' thru port itswh'ead, 'and ajpiston lfor each piston, eachrod having its-linteijrne-'- fsf fdiate' portion'pivoted togitsrespective piston, Y Vand including anz'e'ccentric strap .for its ie d y spective eccentric,i each rod falso A. provided Y.

With a longitudinal port open-'atthezendsofV 1 f the 'rod' to communicate-With,the Vportnr the Y .eccentric during-substantially a vhalf turnl thereof. and. having,'itsjloivcrfendactingasa valvefor the .port of lits respectiverpistonfl f `Y 861m' a lubricating fsystein,v jaflshaft prof..` .j f "i vided with ia longitudinal ort,a bearing and f idlyy supportingthe. cylinders romlsaidgljearf .f

ing v support Vvvith the longitudinalaxe'sfofjthe cylindcrsin the planes of .theiirespectivejffif ,to Communicate;Witlithe porti il th @Cen-#11.15 (trie duringsubstantiallyfa-lialffturnrthere- 1. '.ofand f vnggits lhwer'endgactingas aivalve,

forthe port o'ffits respectivepjston;

9; 11111 a lubricating Systmashaft-Prof .vdedwith a 1 longitudinal* port', :tvbeficentries on'sai'dshat having throvvs, idesatop1r .f KK posite sides of the axis'fo'f theshaftfand pro-.jef

vided Avvith K arcuatejperipheralports ncom# municating with the.portfofsaidshaf apair 1 of rigidly? mounted -.cylinders,f 'one for "each" cylinders in thev planes Y of "their respectiYe-eceach rod having Aits intermediate portio .ip

vted :toits respectiiief`piston,fandincl Y *.dngi; 1a i'1 feccentric vstrap for itsirespectiveeccetric, .Y each Errod i also-provided- Wit Y V portppenjatfthe-endsfofthe oril-v Veccentrics, a.trunk piston .ineachf'cylinderf, IV leach' piston provided 4with'atransiverse''thru Aport in itsV 'head,anda piston `rod'for each?v y piston,`.each rod havingvits intermediate porm5' tion pivoted to its ,'respective-piston,and=in Y, cluding aneccent'ricV strap 'for yitfs respective* j .eccentrica each. rod also providedwith alon-V n n fvdd with--al'gtudiallpdrtopenawhe-eitudmal .pertopenat theiidsofithe' rod:- Aends of the ifod'to'.cominiinicateivith' the 'port'f Y, 12o-@iff eccentric,WW1-'thv `the l`longitudina'lr.axes of the l g i 1 rof, its respective piston.

10.111 a lubricating's'ystein, a shaft proi'. 'vided with a longitudinal port, two ecceni :providedwith arcuate peripheral ports coin- .sunipor lubricant beneathV said shaft, a pair of cylinders-one for each eccentric, rigidly Y mounted below said shaft and extending into :'-said sump,va trunkpiston in eachcylinder 4.provided with a, thru port yin its head, and

api'ston rod for each piston, each rod having `A cateV with the port in the eccentric during l ,"substantially a half turn'thereof and having v its lowervend acting as a valve for the port f ftrics on said shaft and having throw sides at opposite sides of the axis of said shaft and municating with the port of said shaft, a

an intermediate portion pivoted to its re-v spective piston and including an eccentric strap for its respective eccentric, each rod also provided .with a longitudinal portvopen at the ends of the rod to communicate with the port in the eccentric during substantially a halfturn thereof and having its lower end acting as a valve for the port of its respective piston, said cylinder-Walls above the Zones of reciprocation of the piston heads therein, and the skirts of the pistons provided With transverse aligning openings thru which the lubricant may flowlaterally -froin the sump into the cylinders and ports in the latter. o

, LLOYD A. PARRISH.

RAYMOND 'H. ERIOSON. ARNOLD MCORAOKEN.

pistons to the 30 

